CVE-2011-2005CISA KEV

Microsoft Ancillary Function Driver (afd.sys) Improper Input Validation Vulnerability

Severity unknownCVSS unknownCheck the vendor advisory for fixed versions

CISA lists this Microsoft vulnerability as known exploited. Its MSRC release detail is outside this installation's collected history.

CISA KEV Check MSRC

CISA catalog record

afd.sys in the Ancillary Function Driver in Microsoft Windows does not properly validate user-mode input passed to kernel mode, which allows local users to gain privileges via a crafted application.

Product: Ancillary Function Driver (afd.sys)
Added to KEV: 28 Mar 2022
Federal remediation due: 18 Apr 2022
Known ransomware use: Not reported

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Field-level log (2)

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23 Oct 2026 · 09:33:49 UTC Source coverage: cisa-kevIncomplete → Current
23 Oct 2026 · 08:31:50 UTC Source coverage: cisa-kevCurrent → Incomplete

Explore global source statements, affected packages and advisory history for CVE-2011-2005. The catalog has a separate collection scope from Microsoft release records.

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cve-program · CVE-2011-2005

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Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "product": "n/a",
                    "vendor": "n/a",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "n/a"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON